Eve Hewson

Flora

Orén Kinlan

Max

Joseph Gordon-Levitt

Jeff

Jack Reynor

Ian

Marcella Plunkett

Kathy

Paul Reid

Kev

Don Wycherley

Guard

Amy Huberman

Aishling

Callan Cummins

Teenager in Music Shop

Sophie Vavasseur

Juanita

Margarita Murphy

Lawyer

Alex Deegan

Samantha

Harvey Hutchinson

Keith

Melissa Morefield

Ukulele Girl

Keith McErlean

Barry

Stephen Ryan

Cyclist

Ali Fox

Neighbour 1

Ruairí Heading

Neighbour 2

Ellie O'Halloran

Shop Assistant

Dylan Kelly

Brian

Ailbhe Cowley

Young Woman (Defendant in Court)

Marcus Lamb

George Rooney

Aislín McGuckin

Judge McGovern

Jessica Freed

Registrar

Colman Hayes

Guard in Court

Stephen Jones

Therapist

Aaron Delaney

Compound Kid 1

Jedidjah Rondala

Compound Kid 2

Kelly Thornton

Heart

Joni Mitchell

Self (archive footage) (uncredited)

Katy Perry

Self (archive footage) (uncredited)

Lionel Richie

Self (archive footage) (uncredited)

Luke Bryan

Self (archive footage) (uncredited)

Tom Delahunty

Smoking Customer (uncredited)